Move insert mode completion functions into BufferCompleter
This commit is contained in:
Maxime Coste
parent
6b66a3dfe5
commit
3fe0b8e719
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@ -497,122 +497,6 @@ struct BufferCompletion
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bool is_valid() const { return not candidates.empty(); }
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};
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static BufferCompletion complete_word(const Buffer& buffer,
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BufferCoord cursor_pos,
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bool other_buffers)
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{
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auto pos = buffer.iterator_at(cursor_pos);
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if (pos == buffer.begin() or not is_word(*utf8::previous(pos)))
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return {};
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auto end = buffer.iterator_at(cursor_pos);
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auto begin = end-1;
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while (begin != buffer.begin() and is_word(*begin))
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--begin;
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if (not is_word(*begin))
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++begin;
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String ex = R"(\<\Q)" + String{begin, end} + R"(\E\w+\>)";
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Regex re(ex.begin(), ex.end());
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using RegexIt = boost::regex_iterator<BufferIterator>;
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std::unordered_set<String> matches;
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for (RegexIt it(buffer.begin(), buffer.end(), re), re_end; it != re_end; ++it)
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{
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auto& match = (*it)[0];
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if (match.first <= pos and pos < match.second)
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continue;
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matches.insert(String{match.first, match.second});
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}
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if (other_buffers)
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{
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for (const auto& buf : BufferManager::instance())
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{
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if (buf.get() == &buffer)
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continue;
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for (RegexIt it(buf->begin(), buf->end(), re), re_end; it != re_end; ++it)
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{
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auto& match = (*it)[0];
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matches.insert(String{match.first, match.second});
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}
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}
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}
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CandidateList result;
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std::copy(make_move_iterator(matches.begin()),
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make_move_iterator(matches.end()),
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inserter(result, result.begin()));
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std::sort(result.begin(), result.end());
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return { begin.coord(), end.coord(), std::move(result), buffer.timestamp() };
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}
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static bool is_filename(char c)
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{
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return isalnum(c) or c == '/' or c == '.' or c == '_' or c == '-';
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}
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static BufferCompletion complete_filename(const Buffer& buffer,
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BufferCoord cursor_pos,
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memoryview<String> path)
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{
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auto pos = buffer.iterator_at(cursor_pos);
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auto begin = pos;
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while (begin != buffer.begin() and is_filename(*(begin-1)))
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--begin;
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if (begin == pos)
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return {};
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String prefix{begin, pos};
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std::vector<String> res;
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for (auto dir : path)
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{
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if (not dir.empty() and dir.back() != '/')
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dir += '/';
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for (auto& filename : complete_filename(dir + prefix, Regex{}))
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res.push_back(filename.substr(dir.length()));
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}
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if (res.empty())
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return {};
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return { begin.coord(), pos.coord(), std::move(res), buffer.timestamp() };
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}
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static BufferCompletion complete_opt(const Buffer& buffer,
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BufferCoord cursor_pos,
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OptionManager& options)
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{
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using StringList = std::vector<String>;
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const StringList& opt = options["completions"].get<StringList>();
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if (opt.empty())
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return {};
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auto& desc = opt[0];
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static const Regex re(R"((\d+)\.(\d+)(?:\+(\d+))?@(\d+))");
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boost::smatch match;
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if (boost::regex_match(desc.begin(), desc.end(), match, re))
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{
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BufferCoord coord{ str_to_int(match[1].str()) - 1, str_to_int(match[2].str()) - 1 };
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if (not buffer.is_valid(coord))
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return {};
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auto end = coord;
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if (match[3].matched)
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{
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ByteCount len = str_to_int(match[3].str());
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end = buffer.advance(coord, len);
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}
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size_t timestamp = (size_t)str_to_int(match[4].str());
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ByteCount longest_completion = 0;
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for (auto it = opt.begin() + 1; it != opt.end(); ++it)
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longest_completion = std::max(longest_completion, it->length());
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if (timestamp == buffer.timestamp() and
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cursor_pos.line == coord.line and cursor_pos.column <= coord.column and
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buffer.distance(coord, cursor_pos) < longest_completion)
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return { coord, end, { opt.begin() + 1, opt.end() }, timestamp };
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}
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return {};
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}
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class BufferCompleter : public OptionManagerWatcher_AutoRegister
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{
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@ -710,6 +594,118 @@ public:
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m_context.ui().menu_hide();
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}
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private:
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using StringList = std::vector<String>;
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template<bool other_buffers>
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BufferCompletion complete_word(const Buffer& buffer, BufferCoord cursor_pos)
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{
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auto pos = buffer.iterator_at(cursor_pos);
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if (pos == buffer.begin() or not is_word(*utf8::previous(pos)))
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return {};
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auto end = buffer.iterator_at(cursor_pos);
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auto begin = end-1;
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while (begin != buffer.begin() and is_word(*begin))
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--begin;
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if (not is_word(*begin))
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++begin;
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String ex = R"(\<\Q)" + String{begin, end} + R"(\E\w+\>)";
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Regex re(ex.begin(), ex.end());
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using RegexIt = boost::regex_iterator<BufferIterator>;
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std::unordered_set<String> matches;
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for (RegexIt it(buffer.begin(), buffer.end(), re), re_end; it != re_end; ++it)
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{
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auto& match = (*it)[0];
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if (match.first <= pos and pos < match.second)
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continue;
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matches.insert(String{match.first, match.second});
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}
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if (other_buffers)
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{
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for (const auto& buf : BufferManager::instance())
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{
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if (buf.get() == &buffer)
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continue;
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for (RegexIt it(buf->begin(), buf->end(), re), re_end; it != re_end; ++it)
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{
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auto& match = (*it)[0];
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matches.insert(String{match.first, match.second});
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}
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}
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}
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CandidateList result;
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std::copy(make_move_iterator(matches.begin()),
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make_move_iterator(matches.end()),
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inserter(result, result.begin()));
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std::sort(result.begin(), result.end());
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return { begin.coord(), end.coord(), std::move(result), buffer.timestamp() };
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}
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BufferCompletion complete_filename(const Buffer& buffer, BufferCoord cursor_pos)
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{
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auto pos = buffer.iterator_at(cursor_pos);
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auto begin = pos;
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auto is_filename = [](char c)
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{
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return isalnum(c) or c == '/' or c == '.' or c == '_' or c == '-';
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};
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while (begin != buffer.begin() and is_filename(*(begin-1)))
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--begin;
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if (begin == pos)
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return {};
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String prefix{begin, pos};
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StringList res;
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for (auto dir : options()["path"].get<StringList>())
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{
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if (not dir.empty() and dir.back() != '/')
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dir += '/';
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for (auto& filename : Kakoune::complete_filename(dir + prefix, Regex{}))
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res.push_back(filename.substr(dir.length()));
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}
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if (res.empty())
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return {};
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return { begin.coord(), pos.coord(), std::move(res), buffer.timestamp() };
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}
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BufferCompletion complete_opt(const Buffer& buffer, BufferCoord cursor_pos)
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{
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const StringList& opt = options()["completions"].get<StringList>();
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if (opt.empty())
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return {};
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auto& desc = opt[0];
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static const Regex re(R"((\d+)\.(\d+)(?:\+(\d+))?@(\d+))");
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boost::smatch match;
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if (boost::regex_match(desc.begin(), desc.end(), match, re))
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{
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BufferCoord coord{ str_to_int(match[1].str()) - 1, str_to_int(match[2].str()) - 1 };
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if (not buffer.is_valid(coord))
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return {};
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auto end = coord;
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if (match[3].matched)
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{
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ByteCount len = str_to_int(match[3].str());
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end = buffer.advance(coord, len);
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}
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size_t timestamp = (size_t)str_to_int(match[4].str());
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ByteCount longest_completion = 0;
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for (auto it = opt.begin() + 1; it != opt.end(); ++it)
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longest_completion = std::max(longest_completion, it->length());
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if (timestamp == buffer.timestamp() and
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cursor_pos.line == coord.line and cursor_pos.column <= coord.column and
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buffer.distance(coord, cursor_pos) < longest_completion)
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return { coord, end, { opt.begin() + 1, opt.end() }, timestamp };
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}
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return {};
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}
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void on_option_changed(const Option& opt) override
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{
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if (opt.name() == "completions")
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@ -734,17 +730,16 @@ private:
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if (not m_completions.is_valid())
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{
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auto& buffer = m_context.buffer();
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auto& completers = options()["completers"].get<std::vector<String>>();
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auto& completers = options()["completers"].get<StringList>();
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BufferCoord cursor_pos = m_context.editor().main_selection().last();
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if (contains(completers, "option"))
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m_completions = complete_opt(buffer, cursor_pos, options());
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if (not m_completions.is_valid() and
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(contains(completers, "word=buffer") or contains(completers, "word=all")))
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m_completions = complete_word(buffer, cursor_pos,
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contains(completers, "word=all"));
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m_completions = complete_opt(buffer, cursor_pos);
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if (not m_completions.is_valid() and contains(completers, "word=buffer"))
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m_completions = complete_word<false>(buffer, cursor_pos);
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if (not m_completions.is_valid() and contains(completers, "word=all"))
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m_completions = complete_word<true>(buffer, cursor_pos);
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if (not m_completions.is_valid() and contains(completers, "filename"))
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m_completions = complete_filename(buffer, cursor_pos,
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options()["path"].get<std::vector<String>>());
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m_completions = complete_filename(buffer, cursor_pos);
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if (not m_completions.is_valid())
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return false;
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